In a study of whether a drug might reduce depression, research participants were assigned to take the drug or a placebo. those who took the placebo were in the condition.

Control

Explanation:

In a study of whether a drug might help reduce depression, research participants were assigned to take the drug or a placebo. Those who took the placebo were in the control condition.

In an experiment, the control group are not given the treatment material (drugs in this case). This is to have a basis for comparison of results of the study.

A placebo drug is manufactured not to have any treatment effect on the subjects.

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